Apparatus fob ventilating



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usura `ROBT. R. TAYLOR, 0F READING, PENNSYLVAYIAu APPARAJIUS` FOR VENTILATING` RAILROAD-CARS.

Specification of Letters Patent No.

To all 'whom it may concern/f Be it known that I, ROBERT R. TAYLOR, of Reading, Berks county, State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Ventilating Railroad-Cars; and I do hereby declare the following to be a full, clear, and exact description of the saine, reference being had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to an improvement in apparatus for forcing a constant supply of air into railway cars; and my improvement consists in a blowing cylinder, hung to one of the trucks of the car, and operated from one of the axles by means of an eccentric or an equivalent device, in combina tion with flexible or self-accommodating pipes for admitting air to and discharging it from the cylinder, and with distributing pipes for admitting the compressed air to the car, the whole being arranged substantially as described hereafter. A

In order to enable others to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the accompanying drawing, which forms a part of this specification; Figure 1 is a longitudinal section of a railroad car, showing my improved apparatus for Ventilating the same; Fig. 2, an inverted lan.

The body A of the car, the trucks B, and wheels C with their axles and boxes, are similar and are arranged in a similar manner, to those of ordinary railroad cars. To one of the axles an eccentric D is secured, which is embraced by a strap E, the latter being rigidly connected to the piston rod F of the blowing cylinder G. On each side of this cylinder is a chamber, that on one side communicating with a hollow trunnion al, and that on the opposite side with a hollow trunnion a. These trunnions are hung to brackets Z and d, which are permanently secured to one of the beams of one of the trucks. An elastic pipe H, of leather, gutta percha or gum elastic, is attached to the end of the trunnion a, and extends into a cistern J, which contains a supply of water. Another pipe I is attached to the opposite trunnion c', and passes along the under side of the car and upward either through or outside the latter, so as to terminate above the roof. The chambers on the opposite sides of the cylinder are each furnished with two 23,0497 dated February 2a, ieee valves one at each end, the chamber communicating with the hollow trunnion a having its valves opening outward from the cylinder, andthe chamber communicating with the hollow trunnion a having its valves arranged to open inward, after the manner common to ordinary blowing cylinders, and too well known to need a more minute description. Pipes K and K', communicating with the cistern or chamber J, extend along the under side of the car, and, attached to these pipes, are a series of small branches communicating with the interior of the car. On each side and near the roof of the car are a series of openings M, in which are hung to suitable cross-bars a series of vaned wheels, the vaines projecting a short distance through the openings on the outside of the car.

As the car is drawn over the track, a reciprocating motion will be imparted to the piston within the cylinder G by the eccentric D and rod F, the cylinder vibrating in the brackets d and d', and thus accom modating itself to the different angles assumed by the rod, after the manner of ordinary vibrating engines. A continuous blast of air will thus be forced, through the trunnion a and elastic pipe H, into the reservoir J, while the cylinder is furnished with a constant supply of air through the pipe vI and trunnion a. 'Ihe pipe H is made of iiexible material, in order that it may move and accommodate itself to the mot-ion of the cylinder, as well as to that of the truck, without interrupting the passage of the air. For a similar reason, the lower end of the suction pipe I is also made elastic, the perpendicular portion being rigid, and passing through the roof of the car, so that the air drawn into the cylinder may be as free from dust and other impurities as possible. Should the air drawn into the cylinder become impregnated with any particles of dust, it is deprived of the same by contact with the water in the reservoir J, so that the air which passes along the pipes K and K and through their branches into the car is perfectly free from all impurities. Simultaneously with the injection of a constant supply of pure air into the interior of the car, the projecting portion of the vane wheels in the openings M are turned around by the impulse of the external air, caused by the progress of the car, and the rapid revolving motion of the vanes tends to facilitate the escape of the impure air `from the interior of the car, to make Way for the pure air forced into it by the blowing cylinder. It will be seen, without further description, that as the car moves a thorough ventilation of the interior will be effected.

I do not claim broadly, the forcing of air into railway cars by a blowing apparatus operated by the axles, as such a device is described in the patents of R. Cook, Aug. 19th, 1851, and J. I-I. Taylor, Oct. 30th, 1855; nor do I claim an air pump or air pumps operated by the axles, as they have been heretofore used in connection with pneumatic car springs. I also disclaim the rotating, Ventilating valves M, the same or their equivalents having been heretofore used; but A I claim and desire to secure by Letters Patent;

The blowing cylinder G, hung to one of the trucks of the car, and operated from one of the axles by means of an eccentric D or other equivalent device, in combination with the flexible or selffaccommodating inlet and discharge pipes I and H and the distributing pipes K, the whole being arranged substantially as and for the purpose herein set forth.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

R. R. TAYLOR.

Witnesses:

TJVM. HEEN, FRANK B. MILLER. 

